Propulsion means for power shovels and the like



Dec. 1 1931. w w, SLQANE 1,834,538

PROPULSION MEANS FOR POWER SHOVELS AND THE LIKE Original Filed July 12, 192 4 Sheets-Sheet l Dec. 1, 1931. w. w. SLOANE PROPULSION MEANS FOR POWER SHOVELS AND THE LIKE Original Filed July 12, 1926 4 sheets sheet 2 Dec. 1, 1931. w. w. SLOANE PROPULSION MEANS FOR POWER SHOVELS AND THE LIKE Original Filed July 12, 1926 4 Sheets-Sheet 5 Dec. 1, 1931. w w SLOANE 1,834,538

PROPULSION MEANS FOR POWER SHOVELS AND THE LIKE Original Filed July 12, 1.926 4 s t s t 4 Patented Dec. 1, 1931 arse srA'rEs PATENT oFFicr.

WILLIAM W. SLOANE, OF CHICAGO, ILLINOIS, ASSIGNOR TO GOODMAN MANUFACTUR- ING COMPANY, OF CHICAGO, ILLINOIS,

A CORPORATION OF ILLINOIS PROPULSION MEANS FOR POWER SHOVELS AND THE LIKE Original application filed Ju1y 12, 1926,

' i 1927. Serial This invention relates to continuous tread propulsion means and particularly to such means as applied to power shovels although not limited to this use alone,-and the general objects thereof reside in the provision of such means which is well adapted for its purpose and which is particularly adapted for application on power shovels for usein confined spaces, such as in mines.

Referring now to the drawings:

Figure 1 is a top plan view of a power shovel embodying one form of my invention with portions broken away;

Figure 2 is a central longitudinal vertical section of the machine illustrated in Figure 1;

Figure 3 is a partial rear elevation of the machine with parts broken away and in section;

throughwhich is carried on laterally spaced continuous tread mechanisms 2 of usual construction which are adapted for the propulsion of the shovel.

I Mounted centrally on the base frame 1 is a vertically disposed cylinder 3 containing a piston 4, arranged so that the piston may be raised by fluid pressure in the cylinder to engage a fixed part, such as a roof, thus forming a holding jack for the machine while it is in operation.

A turntable or rotatable frame 5 is carried by the base 1 for movement axially about the vertically'disposed cylinder 3, as best shown in Figure 2, and this'turntable carries the major portion of the operating mechanism.

An electric motor 6 and a fluid pressure pump 7 are mounted on the turntable and are disposed in horizontal longitudinal ar- Serial No. 121,994. Divided and this application filed October 26,

rangement along oneside thereof. 'A reduction gear transmission mechanism 8 operably connects the adjacent ends of the shafts of the motor and pump for the operation of the various mechanisms of the machine as hereinafter described. See Figure 1.

A scoop carrying structure, generally indicated at 9, is ca *ried on the turntable 5 and extends across the same in central relation. with the hereinbefore described vertical holding jack which extends upwardly through a suitable opening through the scoop carrying structure.

' A detailed description of the scoopcarry ing structure and the means whereby it is operated is unnecessary for the present purposes, but is fully described and certain features thereof are claimed in my co-pending application for U.- S. Letters Patent, Serial Number 121,994, filed July 12, 1926, for improvements in power shovels, of which the present application is a division.

4 A. pair of inwardly facing internal gear members 95 have the hubs thereof journaled in-respective of coaxial bearings 96 on the turntable at respective sides thereof and disposed on a transverse axis adjacent the rear of the turntable 5 and underneath the scoop carrying structure 9. See Figures 1, 2, 3, 4; and 6. Keyed in axial bores of these members 95 and extending across between the same is a transmission shaft 97 The right hand member 95 is provided with externalspur gear teeth 98 which mesh with a gear 99 keyed to a shaft 100 journaled on brackets 101 at the right hand side of the turntable. A bevel gear 102 is keyed on the shaft 100 and meshes with a second bevel gear 103 secured on the rear end'of the shaft of the pump 7 whereby the members 95 and shaft 97 are driven from the motor 6. See Figures 3 and 6. Bored spider members 104 are rotatably' mounted on the shaft 97 immediately inward of respective internal gear members 95, and also revolubly mounted on the shaft 97 is a pair of transmission members 105 which are arranged along the shaft 97 and extend from respective of said spider members 104 to the center of the shaft 97.

A second pair of internal gear members i Cf v 106 are secured on the outer ends of respective transmission members 105 and face outwardly. Spur planetary gears 107 are car ried by the spiders 104 and mesh with the in- 5 ternal gear teeth of respective internal gear see Figure 3, of usual construction and-manually controlled in a usual manner, for retarding rotation of respective spider members to provide frictional drives from the outer internal gear members 95 torespective transmission members 105.

Theinner internal gear members 106 are provided with external friction surfaces, designated at 111 in Figure .6, which are engaged by releasable brake bands 112, see F igures land 3, of usual construction and manually controlled in a usual manner, for retarding rotation of respective transmission members 105 for purposes hereinafter appearing.

The transmission members 105 are each provided with a spur gear 113 disposed adjacent the respective internal gear members 106. Mounted on the base frame 1 at its rear end. and disposed adjacent respective 1 sides thereof is a pair of aligned transversely disposedrevoluble shafts 114, and these shafts are connected with respective continuous t-readde-vices .2 for driving the same by chain and sprocket devices 115 of 'usualiconstruc- 'tion. Spur gears 116are secured on respective shafts 114 and are disposed to align with respective gears 113 in oneposition of the.

turntable with respect to'the base frame as shown in the, drawings.

Journaled on the respective transmission members 105 on the inside of respective gears 113are two arms 117, and rotatably mounted on respective of these arms and meshing with respective gears 113are two spur gears 118;

In the angular; movement of the arms 117 the gears 118- clash. engage anddisengage with respective gears 116 for, driving respective continuous tread mechanisms .2 and for permitting angular movement of on-the base frame.

The arms 117 are counterbalancedas designated at 119, see Figure 4, f or facilitating movementthereof, and are locked in gear disengaged position byusualpin means desig- -natedat 121 in said Figure 4. The arms 117 are lockedin their gear engaged positions in the following manner. Mountedfor angular movement on each arm;117 in coaxial-relationwith the gcar,-118 thereof is a member 122 provided with, a concentric arcual lip 123. projecting axially therefrom and engageable with: a; correspondingly recessed formation 124 on,the base frame 1 for locking-the arm 117 in position with the gear 118 thereof meshed with respective gear 116 for; driving the turntable the same. See Figures 3 and 4. Each member 122 is engaged and disengaged with the respective formation 124 by angular movement of the member 122 on its axis, and the mcmbers 122 are secured in engagement with respective formations 124 by removable pins 125 engaged in transverse apertures of these members and respective formations 124, see Figures 3 and 4, these pins also'serving to 1001; members 122 in disengaged position by passing through transverse apertures of the member 122 and extensions 126 of the arms 117.

It will be observed that a drive is provided for the continuous tread devices 2 which is well adapted for its purpose and for a construction involvingthe scoop carrying structu re shown, and'which permits angular move ment ofthe turntable with respect to the base frame.- In operation to propelthe shovel the drive bands and'the brake bands 109 and 112 are manipulated for steering the shovel in a nanner unnecessary to be described.

The turntable 5 is angularly moved on the ase frame 1- in the following manner. The V ase frame is providedwith a large internal ring 127 securedtherewith in concentric relation with the turntable. See Figure 2. Journaled in suitable brackets on the turntable. atthe rear of the jaclcis a vertical shaft 128, and secured on the lower end of this shaft-' is a gear 129 which meshes with the internal gear 127 for driving the turntable on the base frame.

J ournaled in suitable brackets on the turntable is a centrally disposed forwardly and rearwardly extending shaft 131. ure 2. This shaft extends between the shaft 128 and the shaft 97, and secured on the front end of the shaft 131 is a bevel gear 132 which meshes with another bevel gear 133 secured on the shaft 128 for driving the same.

Revolubly engaged on respective of the aforementioned transmission members 105 adjacent their inner ends is a pair of spaced and bored'bevel gears 134 which have their hubs journaled-in respective brackets 135 onv the turntable. See Figures 3 and 6. These bevel gears 134 face each other and are both meshedwith a bevel gear 136 secured on the rear end of the shaft 131 for independently driving the same. Keyed for sliding movementon respective ransmission members 105 and disposed between the bevelgcars is apairofpositive clutch members 137 which are engageable and, disengageable with respective clutch formations 138 on the gears for releasably connecting these gears with respective transmission members 105 for driving the same therefrom and through the gear 136 operating the turntable on the base 1 in respective directions.

The clutch members 137 are manually con trolled in a usual manner, and when the shovel is being propelledby the continuous See Figtread mechanisms 2 these clutch members are disengaged. When the scoop carrying structure is to be operated the arms 117 are raised, as hereinbefore described, and the clutch members 137 are engaged with respective clutch formations L38.- Thoreafter the brake bands 109 are manipulated for frictionally operating the turntable in respective directions.

WVhile I have shown herein and described one form of my invention, I do not wish to be limited to the precise details of construction or arrangements of parts herein shown and described except as specifically limited in the appended claims.

I claim as my invention 1. In a device of the character described, the combination with a base and a turntable carried by the base for angular movement i. a horizontal plane with respect thereto, of propulsion means on said base, and a pair of revoluble gears carried respectively on said turntable and base for driving said propulsion means, one of said gears being movable into mesh with the other gear for driving and out of mesh therewith to permit movement of said turntable with respect to said base.

2. In a device of the character described, the combination with a base and a turntable carried by the base for angular movement in a horizontal plane with respect thereto, of propulsion means on said base, a pair of revoluble spur gears disposed on horizontal axes and carried respectively on said turn table and base for driving said propulsion means in one position of said turntable with respect to said base, one of said gears being movable normal to its axis into mesh with the other gear for driving and out of mesh therewith to permit movement of said turntable with respect to said base, and means for lock ing said movable gear in position meshing with said other gear.

3. In a device of the character described, the combination with a base and a turntable carried by the base for angular movement in a horizontal plane with respect thereto, of a pair of laterally spaced continuous tread devices carrying said base for propulsion, afhorizontal transmission shaft on said turntable, and means for independently operating said tread devices from said shaft when said turntable is positioned with said shaft disposed transversely of said base including a pair of clash gear devices, each of said gear devices comprising a pair of revoluble spur: gears disposed on horizontal axes and carried respectively on said turntable and base and one gear of which is movable normal to its axis into mesh with the other gear for driving and out of mesh therewith to permit movement of said turntable with respect to said base, and means for locking the movable gear of each pair of clash gears in position-meshing with the other gear thereof.

4. in a device of the character described, the combination with a base and a turntable carried by the base for angular movement in a horizontal plane with respect thereto, of a pair of laterally spaced continuous tread devices carrying said base for propulsion, a horizontal transmisison shaft on said turntable, a pair of transmission member also on said turntable and disposed coaxially with said shaft on opposite ends thereof, releasable friction means for selectively driving said transmission members from said shaft, a pair of devices for operating said tread devices from respective of said transmission members, each of said devices comprising a pair of transmission elements carried respectively on said turntable and base and one of which is mova ale to engage the other for driving and to disengage therefrom to verinit movement of said turntable on said base, and means for operating said turntable from said transmission members in opposite directions including releasable means.

5. In a device of the character described, the combination with a base and a turntable carried by the base for angular movement in a horizontal plane with respect thereto, of a pair of laterally spaced continuous tread devices carrying said base for propulsion, a horizontal transmission shaft on said turntable, a pair of bored transmission members on said shaft and arranged therealong, releasable friction devices associated with the outer ends of said transmission members for independently driving the same from said shaft, a pair of clash gear devices for driv ing said tread devices from respective of said transmission members when said turntable is'positioned with said shaft disposed transversely of said base, each of said gear devices comprising a pair of revoluble spur gears disposed on horizontal aXes and carried respectively on said turntable and base and one gear of which is movable normal to its axis into mesh with the other gear for driving and out of mesh therewith to permit movement of said turntable with respect to said base, means for locking the movable gear of each pair in position meshing with the other gear thereof, and means for operating said turntable from said transmission members in opposite directions includingreleasable positive clutch means. I

6. In a device of the character described, the combination with a base and a turntable carried by the base for angular movement in a horizontal plane with respect thereto, of a pair of laterally spaced continuous tread devices carrying said base for propulsion, a transverse horizontal transmission shaft on said turntable, a pair of transmission members on said turntable and disposed coaxially with said shaft on opposite ends thereof,

manually controlled means for driving either or both'of said transmission members from" said shaft, manuallycontrolledmeans for retardin either of said transmission members, a pair of devices for operating saiditread devices from respective of said transmission members, each of said devices comprising a pair of transmission elements carried respectively on said turntable and'base and one of Which is movable to engage the other for driving and to disengage therefrom to'permitmovementof said turntable on said base, and manually controlled means for selectively operating said turntable from said transmission members in respective of opposite directions. v

7; In a device of the character described, the combination with a base and a turntable carried on the base for angular movement in a. horizontal plane With respectthereto, of a pair of laterally spaced continuous tread devices carrying said base for propulsion, a horizontal transmission shaft on said turntable, a pair of bored transmission members on said shaft and arranged therealong, manually controlled releasable friction driving devices associated With the outer ends of said transmission members for independently driving the same from said shaft, manually controlled releasable friction brake devices associated With respective of said'driving devices for retarding respective of said transmission members, and means for driving said tread devices from respective of said transmission members When said turntable is positioned with said shaft disposed transversely of said base including a pair of clash gear devices,each of said gear devices comprising a pair of 'revoluble spur gears disposed on horizontal axes and carried respectively on said turntable and base and one gear of Which is movable normalto its axis into mesh With the other gear for driving and out of mesh therewith to permit movement of'sa-id turntable with respect to said base, means for locking the movable gear of each pair in position meshing with the other gear thereof, a pair of bored bevel gears on respective of said transmission members adjacent the inner ends thereof, manually controlled releasable positive clutch means for selectively driving said bevel gears from respective of said transmission members, and a third bevel gear on said turntable and meshing With both of said pair of bevel gears for operating said turntable from either of this pair of gears.

Signed at Chicago, in the county of Cook and State of Illinois, this 20th day of ()ctoher, A. D. 192?.

" lVILLIAM W. SLOANE. 

